In this paper, based on the general physical and chemical character of MTG, several satisfied methods was decided after studied on using high centrifugation, ammonium sulfate precipitation, alcohol precipitation, acetone precipitation to separation MTG.

• 本文根据微生物谷胺酰胺转胺酶的基本理化性质，先后采用了高速离心、硫酸铵盐析沉淀、乙醇沉淀、丙酮沉淀等方法，对微生物谷胺酰胺转胺酶的初步提纯工艺进行了研究讨论，确定了该酶不同用途的初提方法，并为该酶的进一步纯化做好准备。